ABERDEEN 20NNE, WASHINGTON

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 42.4 46.7 50.4 55.3 62.0 67.0 71.5 72.3 67.4 58.1 48.2 42.4 57.0
Highest Mean Max. Temperature (F) 49.1 55.5 56.8 60.3 67.1 72.8 79.5 81.1 73.6 62.4 51.4 46.8 58.8
Year Highest Occurred 1961 1963 1965 1989 1969 1970 1985 1967 1967 1987 1976 1979 1967
Lowest Mean Max. Temperature (F) 34.3 40.9 45.2 49.5 55.3 60.8 66.6 66.0 62.5 53.7 40.8 36.9 54.8
Year Lowest Occurred 1969 1989 1976 1972 1974 1971 1986 1976 1978 1984 1985 1990 1975
Mean Temperature (F) 37.0 39.8 42.0 45.8 51.3 56.4 60.1 60.9 56.6 49.1 42.1 37.5 48.2
Highest Mean Temperature (F) 42.4 46.4 47.0 50.0 54.8 60.1 64.6 65.6 61.2 53.3 45.0 41.8 50.2
Year Highest Occurred 1961 1963 1986 1989 1983 1969 1985 1967 1990 1988 1987 1980 1987
Lowest Mean Temperature (F) 29.7 33.6 37.7 41.3 46.7 52.1 57.7 57.3 53.0 46.5 35.2 32.6 46.4
Year Lowest Occurred 1969 1989 1976 1975 1974 1971 1977 1975 1972 1961 1985 1983 1975
Mean Min. Temperature (F) 31.5 32.8 33.6 36.2 40.5 45.8 48.6 49.6 45.8 40.0 36.0 32.6 39.4
Highest Mean Min. Temperature (F) 37.4 37.3 39.6 41.4 43.8 50.7 52.3 53.4 51.6 47.1 40.4 37.7 42.3
Year Highest Occurred 1986 1963 1986 1990 1983 1969 1990 1990 1990 1988 1987 1980 1986
Lowest Mean Min. Temperature (F) 25.0 26.3 29.6 31.7 37.0 42.1 46.2 46.6 41.3 35.8 29.6 27.0 37.4
Year Lowest Occurred 1969 1989 1965 1975 1964 1965 1962 1973 1965 1972 1985 1983 1964
Mean Precipitation (in.) 19.74 16.85 14.58 9.10 5.78 3.65 2.61 2.83 5.89 11.66 19.23 21.23 133.15
Highest Precipitation (in.) 33.35 39.07 24.49 17.92 11.96 9.68 10.18 8.51 14.81 32.17 35.83 37.73 167.42
Year Highest Occurred 1967 1961 1971 1981 1984 1981 1983 1975 1969 1975 1990 1979 1961
Lowest Precipitation (in.) 1.13 6.62 2.78 2.16 1.72 0.87 0.14 0.12 0.08 1.57 5.91 5.12 87.97
Year Lowest Occurred 1985 1977 1965 1977 1967 1967 1984 1986 1990 1972 1976 1985 1985
Heating Degree Days (F) 868. 706. 713. 576. 425. 263. 160. 151. 257. 493. 687. 853. 6152.
Cooling Degree Days (F) 0. 0. 0. 0. 0. 0. 8. 24. 0. 0. 0. 0. 32.

Western Regional Climate Center, wrcc@dri.edu